Signs are emerging that a combination of coalition airstrikes and more assertive Iraqi and Kurdish forces are forcing ISIS to change its behavior. Learn more about the group.
U.S. Marine Corps
Ronald Martinez/Getty Images
CDC Public Health Image Library
Theo Wargo/Getty Images for Tony Awards Productions
Patrick Aventurier/Getty Images
iStock / DrGrounds
Kevin Winter/Getty Images
iStock / shironosov
Sign up for Breaking News, Daily Headlines, Severe Weather Alerts & more!